DE69120596T2 - Data encryption apparatus and methods for data encryption - Google Patents

Data encryption apparatus and methods for data encryption

Info

Publication number
DE69120596T2
DE69120596T2 DE1991620596 DE69120596T DE69120596T2 DE 69120596 T2 DE69120596 T2 DE 69120596T2 DE 1991620596 DE1991620596 DE 1991620596 DE 69120596 T DE69120596 T DE 69120596T DE 69120596 T2 DE69120596 T2 DE 69120596T2
Authority
DE
Germany
Prior art keywords
data encryption
methods
apparatus
encryption apparatus
data
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE1991620596
Other languages
German (de)
Other versions
DE69120596D1 (en
Inventor
Thomas I Elmer
Tuan T Nguyen
Rung-Pan Lin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Semiconductor Corp
Original Assignee
National Semiconductor Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US07/518,117 priority Critical patent/US5058164A/en
Application filed by National Semiconductor Corp filed Critical National Semiconductor Corp
Application granted granted Critical
Publication of DE69120596T2 publication Critical patent/DE69120596T2/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00Cryptographic mechanisms or cryptographic arrangements for secret or secure communication
    • H04L9/08Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00Accessing, addressing or allocating within memory systems or architectures
    • G06F12/14Protection against unauthorised use of memory or access to memory
    • G06F12/1408Protection against unauthorised use of memory or access to memory by using cryptography
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/78Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data
    • G06F21/79Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data in semiconductor storage media, e.g. directly-addressable memories
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00Cryptographic mechanisms or cryptographic arrangements for secret or secure communication
    • H04L9/08Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0894Escrow, recovery or storing of secret information, e.g. secret key escrow or cryptographic key storage
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2221/00Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/21Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/2107File encryption
DE1991620596 1990-05-03 1991-04-19 Data encryption apparatus and methods for data encryption Expired - Lifetime DE69120596T2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US07/518,117 US5058164A (en) 1990-05-03 1990-05-03 Encryption of streams of addressed information to be used for program code protection

Publications (1)

Publication Number Publication Date
DE69120596T2 true DE69120596T2 (en) 1997-02-20

Family

ID=24062621

Family Applications (2)

Application Number Title Priority Date Filing Date
DE1991620596 Expired - Fee Related DE69120596D1 (en) 1990-05-03 1991-04-19 Data encryption apparatus and methods for data encryption
DE1991620596 Expired - Lifetime DE69120596T2 (en) 1990-05-03 1991-04-19 Data encryption apparatus and methods for data encryption

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE1991620596 Expired - Fee Related DE69120596D1 (en) 1990-05-03 1991-04-19 Data encryption apparatus and methods for data encryption

Country Status (5)

Country Link
US (1) US5058164A (en)
EP (1) EP0455064B1 (en)
JP (1) JPH04229346A (en)
KR (1) KR100227875B1 (en)
DE (2) DE69120596D1 (en)

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Also Published As

Publication number Publication date
JPH04229346A (en) 1992-08-18
KR100227875B1 (en) 1999-11-01
EP0455064B1 (en) 1996-07-03
DE69120596D1 (en) 1996-08-08
EP0455064A3 (en) 1991-11-21
KR910020560A (en) 1991-12-20
EP0455064A2 (en) 1991-11-06
US5058164A (en) 1991-10-15

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